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Born on the Trail

Niki Micallef

Born on the Trail explores trail and ultra running together - learning from science, research and experience to help you and me understand and improve our training.

Platform
Substack
PricingFreemiumPublishesWeekly
Issues55Founded3 years agoLast Issue10 days ago
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Latest Issues

You Just Finished Your Run. Now What? A Science-Based Guide to Recovery

If you’re looking for highlights rather than a deep dive, feel free to skip straight to the Key Takeaways throughout. If you want the nuance, the data, and the reasoning behind it, read on.


You just finished your run…tired, exhauste...

10 days ago
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Why Trail Running Breaks the Rules of Exercise Science with Dr. Simon de Waal

In road running, VO2max, lactate threshold, and running economy can explain up to 95% of the variation in performance between athletes. In trail running, that same model barely holds together, with running economy being the worst predictor...

17 days ago
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The Monthly Orientation - July 2026

A monthly check-in to help you orient your training: what to focus on, one workout worth doing, a community spotlight and content that sparked curiosity.

June was brutal, especially for those of us in Europe. The heatwave hit pretty much e...

23 days ago
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Your Watch Doesn't Understand Trail Running Performance

If you’re looking for highlights rather than a deep dive, feel free to skip straight to the Key Takeaways throughout. If you want the nuance, the data, and the reasoning behind it, read on.


Regardless of the watch brand you use, it...

24 days ago
17

How Young Is Too Young for Ultra Running?

A while back, I stumbled across a social media post where a mother was frustrated that her 17-year-old son had been barred from entering an ultra trail race, despite, in her words, “being old enough for military service.” She argued that “n...

a month ago
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  • Niki Micallef

    Ultra trail runner & certified ultra coach. Constantly looking to challenge myself and learn, both for myself & my athletes. Through Born on the Trail I use science to answer ultrarunning's biggest questions, helping you to elevate your performance.

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